<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no,shrink-to-fit=no" />
		<link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.1.1/css/bootstrap.min.css">
		<title></title>
	</head>
	<body>
		<div id="container">
			
		
		  <h5 class="text-center text-danger"><small>这是一个网页</small> </h5>
		  <ul class="list-group ml-2 mr-2">
		    <li class="list-group-item list-group-item-success">成功列表项</li>
		    <li class="list-group-item list-group-item-secondary">次要列表项</li>
		    <li class="list-group-item list-group-item-info">信息列表项</li>
		    <li class="list-group-item list-group-item-warning">警告列表项</li>
		    <li class="list-group-item list-group-item-danger">危险列表项</li>
		    <li class="list-group-item list-group-item-primary">主要列表项</li>
		    <li class="list-group-item list-group-item-dark">深灰色列表项</li>
		    <li class="list-group-item list-group-item-light">浅色列表项</li>
		    <li class="list-group-item list-group-item-danger">危险列表项</li>
		    <li class="list-group-item list-group-item-primary">主要列表项</li>
		    <li class="list-group-item list-group-item-dark">深灰色列表项</li>
		    <li class="list-group-item list-group-item-light">浅色列表项</li>
		    <li class="list-group-item list-group-item-danger">危险列表项</li>
		    <li class="list-group-item list-group-item-primary">主要列表项</li>
		    <li class="list-group-item list-group-item-dark">深灰色列表项</li>
		    <li class="list-group-item list-group-item-light">浅色列表项</li>
		    <li class="list-group-item list-group-item-danger">危险列表项</li>
		    <li class="list-group-item list-group-item-primary">主要列表项</li>
		    <li class="list-group-item list-group-item-dark">深灰色列表项</li>
		    <li class="list-group-item list-group-item-light">浅色列表项</li>
		    <li class="list-group-item list-group-item-danger">危险列表项</li>
		    <li class="list-group-item list-group-item-primary">主要列表项</li>
		    <li class="list-group-item list-group-item-dark">深灰色列表项</li>
		    <li class="list-group-item list-group-item-light">浅色列表项</li>
		  </ul>
		</div>
		
	</body>
</html>
